diff -up orion-1.6.1/orion.pro.fix_prefix orion-1.6.1/orion.pro
--- orion-1.6.1/orion.pro.fix_prefix	2017-07-06 22:26:29.000000000 +0200
+++ orion-1.6.1/orion.pro	2017-09-18 11:05:30.081935967 +0200
@@ -131,10 +131,10 @@ linux:!android: {
     INSTALLS += target
 
     _desktop.files = distfiles/Orion.desktop
-    _desktop.path = /usr/local/share/applications
+    _desktop.path = /usr/share/applications
 
     _icon.files = distfiles/orion.svg
-    _icon.path = /usr/local/share/icons
+    _icon.path = /usr/share/icons/hicolor/scalable/apps
 
     INSTALLS += _desktop _icon
 }